<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
</head>
</head>
<body>
    <ul id="example-2">
        <li v-for="(item, index) in items">
          {{ parentMessage }} - {{ index }} - {{ item.message }}
        </li>
      </ul>
  </li>
</ul>
<script>
   var example2 = new Vue({
  el: '#example-2',
  data: {
    parentMessage: 'Parent',
    items: [
      { message: 'Foo' },
      { message: 'Bar' }
    ]
  }
})
</script>
    
</body>
</html>